No cigar either... 
foreach my $k1 ( keys %{ $hash{'prefix'} } ) {
     for my $k2 ( keys %{ $hash{$k1} } ) {
          print("$k2\n");
     }
}

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In reply to Re^3: Need help looping through hash by ewhitt
in thread Need help looping through HoH by ewhitt

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